Sentences with phrase «copper metal content»

PAKISTAN - FOCUSED local explorer Tethyan Copper Company has increased its estimated resource base by 29 per cent at its H4 copper project in Pakistan, lifting the contained copper metal content to 1.1 million tonnes.

Not exact matches

Investigators are pursuing several lines of attack to shrink the platinum content: using it more efficiently, replacing some or all of it with palladium (which performs similarly and is somewhat less expensive), replacing either of those precious metals with inexpensive metals, such as nickel or copper, and foregoing metals altogether.

This is because much of the silver - colored jewelry sold by wandering vendors is actually made from alpaca, a lesser quality metal with a heavy copper content.